German LGBT rights activists

Karl Giese (18 October 1898 – March 1938) was a German archivist, museum curator, and the life partner of Magnus Hirschfeld.

Kurt Hiller (17 August 1885, Berlin – 1 October 1972, Hamburg) was a German essayist, lawyer, and expressionist poet. He was also a political (namely pacifist) journalist.

Karl-Günther Heimsoth, also known as Karl-Guenter Heimsoth (4 December 1899, Charlottenburg – July 1934, Berlin), was a German physician, polygraph, and politician. Heimsoth was a member of the Nazi Party and later the Communist Party of Germany.

John Henry Mackay (February 6, 1864 – May 16, 1933) was a Scottish-German egoist anarchist, thinker and writer. Born in Scotland and raised in Germany, Mackay was the author of Die Anarchisten (The Anarchists, 1891) and Der Freiheitsucher (The Searcher for Freedom, 1921).
Later in life, under the pseudonym Sagitta, he became an advocate for homosexual love between men and boys.